Knowledge base for software setup, errors, and daily tool work.

Chrome Black Screen Fix When Hardware Acceleration Is On

If Chrome shows a black screen, flickers, or freezes after you enable hardware acceleration, you&...

Fix Chrome Black Screen on Nvidia GPU with Hardware Acceleration

If you're seeing a black screen in Chrome—especially when watching videos or scrolling—and yo...

How to Reinstall Windows Security App (Microsoft Defender)

If the Windows Security app (Microsoft Defender) is missing, crashing, or not opening, reinstalli...

Fix Git 'index.lock file exists' Error

If you see fatal: Unable to create 'path/.git/index.lock': File exists. when...

Chrome Sync Not Working on Windows 10: Quick Fixes

You open Chrome on your Windows 10 PC, expecting your bookmarks and passwords to be there, but no...

How to Set npm Prefix to Avoid Permission Denied Errors